[#1382] neofs-cli: move netmap command to a separate package

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

cmd/neofs-cli/modules/netmap/root.go

@@ -0,0 +1,30 @@
+package netmap
+
+import (
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
+	"github.com/spf13/cobra"
+)
+
+var Cmd = &cobra.Command{
+	Use:   "netmap",
+	Short: "Operations with Network Map",
+	Long:  `Operations with Network Map`,
+	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+		// bind exactly that cmd's flags to
+		// the viper before execution
+		commonflags.Bind(cmd)
+		commonflags.BindAPI(cmd)
+	},
+}
+
+func init() {
+	Cmd.AddCommand(
+		getEpochCmd,
+		nodeInfoCmd,
+		netInfoCmd,
+	)
+
+	initGetEpochCmd()
+	initNetInfoCmd()
+	initNodeInfoCmd()
+}